Php scandir()问题

Question

我想知道,我的Scandir()函数在php $ _GET变量上工作,所以变量返回文件夹,但我遇到了问题,因为我不知道如果出现问题,如何回显错误目录.

这是我得到的错误:

Warning: scandir(users/ro/f) [function.scandir]: failed to open dir: No such file or directory in C:\xampp\htdocs\OSO\desktop\main_content\file.php on line 31

这是我的代码

$folder = $_GET['file_folder'];
$directory = "users/$username/$folder";
if (scandir($directory, 0)) {
    unset($documents[0], $documents[1]);
    $documents = scandir($directory, 0);

    // for each loop
} else {
    echo "No such directory";
}

提前干杯

Answer 1

我先调用之前检查是否$directory存在使用is_dir()scandir():

if (is_dir($directory)) {
    $filenames = scandir($directory, 0);
    // do something
} else {
    echo "No such directory";
}